| Name | ECO | Main line length |
| Slav Defense | D10 | 4 plies |
| Slav Defense: Diemer Gambit | D10 | 5 plies |
| Slav Defense | D10 | 5 plies |
| Slav Defense: Modern Line | D11 | 5 plies |
| Slav Defense: Exchange Variation | D10 | 5 plies |
| Slav Defense: Winawer Countergambit | D10 | 6 plies |
| Slav Defense | D10 | 6 plies |
| Slav Defense: Winawer Countergambit, Anti-Winawer Gambit | D10 | 7 plies |
| Slav Defense: Quiet Variation | D11 | 7 plies |
| Slav Defense: Slav Gambit, Alekhine Attack | D10 | 7 plies |
| Slav Defense: Bonet Gambit | D11 | 7 plies |
| Slav Defense: Three Knights Variation | D15 | 7 plies |
| Slav Defense: Breyer Variation | D11 | 7 plies |
| Slav Defense: Quiet Variation, Pin Defense | D11 | 8 plies |
| Slav Defense: Quiet Variation, Schallopp Defense | D12 | 8 plies |
| Slav Defense: Chebanenko Variation | D15 | 8 plies |
| Slav Defense: Schlechter Variation | D15 | 8 plies |
| Slav Defense: Süchting Variation | D15 | 8 plies |
| Slav Defense: Two Knights Attack | D15 | 8 plies |
| Slav Defense: Exchange Variation | D13 | 8 plies |
| Slav Defense: Chebanenko Variation, Advance System | D15 | 9 plies |
| Slav Defense: Alekhine Variation | D15 | 9 plies |
| Slav Defense: Geller Gambit | D15 | 9 plies |
| Slav Defense: Alapin Variation | D16 | 9 plies |
| Slav Defense: Exchange Variation, Boor Attack | D10 | 9 plies |
| Slav Defense: Quiet Variation, Schallopp Defense | D12 | 10 plies |
| Slav Defense: Chebanenko Variation | D15 | 10 plies |
| Slav Defense: Modern Line | D11 | 10 plies |
| Slav Defense: Soultanbeieff Variation | D16 | 10 plies |
| Slav Defense: Smyslov Variation | D16 | 10 plies |
| Slav Defense: Steiner Variation | D16 | 10 plies |
| Slav Defense: Czech Variation | D17 | 10 plies |
| Slav Defense: Modern Line | D11 | 11 plies |
| Slav Defense: Geller Gambit | D15 | 11 plies |
| Slav Defense: Czech Variation, Classical System | D18 | 11 plies |
| Slav Defense: Modern Line | D11 | 11 plies |
| Slav Defense: Czech Variation, Krause Attack | D17 | 11 plies |
| Slav Defense: Czech Variation, Bled Attack | D17 | 11 plies |
| Slav Defense: Exchange Variation, Schallopp Variation | D13 | 11 plies |
| Slav Defense: Czech Variation, Wiesbaden Variation | D17 | 12 plies |
| Slav Defense: Czech Variation, Lasker Variation | D18 | 12 plies |
| Slav Defense: Exchange Variation, Symmetrical Line | D14 | 12 plies |
| Slav Defense: Czech Variation, Krause Attack, Fazekas Gambit | D17 | 13 plies |
| Slav Defense: Quiet Variation, Amsterdam Variation | D12 | 14 plies |
| Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line | D17 | 15 plies |
| Slav Defense: Czech Variation, Dutch Variation | D19 | 15 plies |
| Slav Defense: Quiet Variation, Landau Variation | D12 | 15 plies |
| Slav Defense: Exchange Variation, Trifunovic Variation | D14 | 16 plies |
| Slav Defense: Czech Variation, Carlsbad Variation | D17 | 16 plies |
| Slav Defense: Czech Variation, Classical System, Main Line | D19 | 17 plies |
| Slav Defense: Czech Variation, Dutch Variation, Sämisch Variation | D19 | 19 plies |
| Slav Defense: Czech Variation, Carlsbad Variation, Morozevich Variation | D17 | 22 plies |